Though the treads may be supported many other ways.
Spiral staircase design calculation pdf.
The walkline is located half way along the stair width method 3.
The walkline is located 2 3 of the way along the stair width measured towards the inner handrail method 4.
Spiral staircase there are bim and other software to determine the spiral staircase dimensions.
Space saving consider a staircase with a height of 3 meters which goes from an exit door down to ground level.
The calculation of dimensions of a spiral staircase is very critical and performed with utmost care.
Stringer or string the structural member that supports the treads.
The walkine is located 50 cm 20 from the inner handrail or in the centre if the stair width is less than 1m 40.
There are typically two stringers one on either side of the stairs.
With daring shapes and diverse configurations they can also be iconic objects.
A rail fixed parallel above the pitch line at the sides of.
The walkline is located 50cm 20 from the outer handrail.
The stringers are notched so that the risers and treads fit into them.
Spiral staircases save valuable square meters because they occupy a much smaller area than a conventional staircase.
But it is essential as a civil engineer to know the restrictions and.
It takes daring shape and configurations compared to the conventional staircase.